Exploring Charge Trapping Dynamics in Si:HfO₂-FeFETs by Temperature-Dependent Electrical Characterization
2024 8th IEEE Electron Devices Technology & Manufacturing Conference (EDTM)(2024)
摘要
Ferroelectric HfO
2
technology shows promise for non-volatile memory and neuromorphic devices. However, charge trapping limits their performance. This work presents temperature-dependent electrical characterization that reveals distinct memory window behaviors, transitioning from ferroelectric to trapping. Our measurements span six orders of magnitude in time, and ambient temperatures of 80-300 K. Analysis of threshold voltage, memory window, and de-trapping dynamics extracts a trap energy level of ~0.2 eV, providing crucial insights for advancing FE HfO
2
-based FeFETs technology.
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关键词
charge trapping,read-after-write delay,trap energy level,cryogenic measurements,FeFET,Si:HfO₂
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